(19-02-2015, 07:05 AM)z3bra Wrote: Dear Unix diary,

The other day, I met some Docker experts.
I met them at my company, where I work as a sysadmin. They came to see if (and how) they can help us with the deployment of our application. I was a bit biased at first, because our application consist of many components, each doing a job and communicating with the other nodes (Unix way FTW!). And as Docker seems to put every app in its own container, isolated from the rest of the system, it seemed not well suited for our needs.
I might be wrong though, because they explained to me that many containers can share the same networking stack, and thus use the same bridged interface from the host. Pretty good point! But there is more...

They told us about an experience they did with docker, to show how fast the docker containers boot. They had a piano keyboard linked to a virtual machine set up, and when they pressed a key, a container would start, play a sound, and then die. Al this, in less than a second. Wow.
And finally, they gave an that I, as an admin having to install a few computers per month, could not ignore.. Docker containers can be used to bootstrap a whole X environment with preinstalled application on any host (windows, linux, OSX, ...) making the process of installing software as easy as copying a container on a computer, and firing it up...

I... I think I'm sold!

The piano thing is extremely cool.
I'm also at work using portable box for development and testing.
We use vagrant, it's simple and easy to learn. It's not as scalable as Docker though.